Year	Dollars
1992-01-01	68039880
1997-01-01	104448377
2002-01-01	133093675
2003-01-01	96476649
2004-01-01	55492323
2005-01-01	92867514
2006-01-01	89212056
2007-01-01	116356606
2008-01-01	157403840
2009-01-01	150767126
2010-01-01	195713022
2011-01-01	281233740
2012-01-01	235562785
2013-01-01	205450938
2014-01-01	210713428
2015-01-01	179183817
2016-01-01	228381867